​Who doesn't enjoy impersonating LeBron James?

Apparently, even professional athletes enjoy impersonating the star of the Cleveland Cavaliers. Tennis star Serena Williams did just that today on Snapchat.

Williams, who is currently pregnant and due by the end of the summer, reportedly has eyes on returning to tennis in time for the Australian Open in January. Is she already working towards this right now?

At nine months pregnant, to see Williams in the gym at all is surprising, but it's a testament to her dedication.

​​Impersonating LeBron James' chalk toss? Williams may just be looking for an extra bit of motivation as she eyes Margaret Court's Grand Slam singles titles record that she could tie with an Aussie Open win.

Tossing chalk is far from an official workout routine, but it's a good place to start. All eyes on you, Serena!